admission
compassion
depression
emission
fission
impression
mission
nonaggression
obsession
passion
recession
session
transmission
Some words that end with ssion or sion:
accession. admission. concession. concussion. compassion. commission. confession. compression. decompression. decommission. digression. discussion. depression. expression. impression. intersession. intermission. mission. obsession. possession. session. recession. remission. secession.
ANSWER
allusion
expansion
conclusion
explosion
confusion
decision
invasion
exclusion
revision
collision
extension
division
explosion
inclusion
television
expression
vision
mansion
discussion
ANSWER
basion
bioconversion
conversion
division
expulsion
fission
hypertension
illusion
immersion
omission
oppresion
precision
provision
reversion
suspension
transfusion
regression
possession
guess, fuss, session, fission
'Aggression' seems to fit that description.
It would be better if we could know how many letters in the word
There are none!
Gnatssion
killing
dog, bog
Golgotha, gardenia
its king!
running
jagg
* get out * guess what * get it
Doing
being
giant
Growing is first one I thought of